v3.8.0.1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 189,156	$ 33,919	$ 359,743	$ (79,444)
Available-for-sale securities:
Unrealized holding gains (losses), net of tax effect	490	(404)	(354)	(1,729)
Reclassification of realized transactions, net of tax effect	0	7	0	89
Defined benefit plans:
Actuarial gains (losses) related to defined benefit pension plans, net of tax benefit of $2,311 $742, $1,385 and $3,745, respectively	618	(1,525)	(3,496)	(8,330)
Reclassification of realized transactions, net of tax effect	213	0	416	0
Change in net foreign currency translation adjustment	0	454	0	(2,569)
Other comprehensive income (loss), net of tax effect	1,321	(1,468)	(3,434)	(12,539)
Comprehensive income (loss)	$ 190,477	$ 32,451	$ 356,309	$ (91,983)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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